Karl's GCSE results

In Series 1, Ricky & Steve contacted Karl's school, and found out his GCSE exam results. Karl was surprised to hear that he only took one, History, for which he got an E. He was annoyed because he turned up for more; he thought he had done English, Maths, Art, and Physics. It appears that he was not registered for the others. The subject of Karl's GCSE results were brought up on 23 February 2002 and revealed on 02 March 2002.